| College Success Foundation | 501(c)(3) | 2000 | $27.7 million | $33.3 million | 2025-06 |
| Eton School Foundation | 501(c)(3) | 2009 | $10.9 million | $18.1 million | 2025-06 |
| Jubilee Reach | 501(c)(3) | 2006 | $6.6 million | $6.7 million | 2025-06 |
| Yellow Wood Academy | 501(c)(3) | 1983 | $6.4 million | $8.9 million | 2025-08 |
| Eastside Christian School | 501(c)(3) | 1997 | $6.3 million | $10.1 million | 2025-07 |
| Medina Academy | 501(c)(3) | 2000 | $5.2 million | $5.8 million | 2024-12 |
| Metropolitan Seattle Jewish Day School | 501(c)(3) | 1980 | $5.1 million | $16.9 million | 2025-06 |
| Bellevue College Foundation | 501(c)(3) | 1979 | $4 million | $28.6 million | 2025-06 |
| International Friends School | 501(c)(3) | 2017 | $3.7 million | $1.4 million | 2025-06 |
| Computing for All | 501(c)(3) | 2015 | $3.3 million | $1.1 million | 2025-03 |
| American Cultural Exchange Service | 501(c)(3) | 1999 | $3 million | $2.5 million | 2025-06 |
| Eastside Academy | 501(c)(3) | 2002 | $2.3 million | $2.1 million | 2025-06 |
| College Success Foundation-District of Columbia | 501(c)(3) | 2007 | $2.2 million | $8.4 million | 2025-06 |
| Bellevue Schools Foundation | 501(c)(3) | 1979 | $1.8 million | $4.4 million | 2025-08 |
| Eastside Academics Foundation | 501(c)(3) | 2017 | $1.7 million | $254,763 | 2024-12 |
| Bellevue Discovery Center for Early Childhood Education | 501(c)(3) | 2011 | $973,303 | $1.4 million | 2025-06 |
| Heavy Metal Summer Experience | 501(c)(3) | 2023 | $971,702 | $214,295 | 2025-12 |
| Nicolas Fund for Education | 501(c)(3) | 2013 | $846,496 | $1.4 million | 2025-12 |
| Gurukul | 501(c)(3) | 2002 | $695,060 | $1.7 million | 2025-06 |
| Eastside Pathways | 501(c)(3) | 2011 | $674,217 | $415,902 | 2025-12 |
| Asia Pacific Language School | 501(c)(3) | 1996 | $584,391 | $292,168 | 2025-12 |
| Heritage Homeschool Co-Op | 501(c)(3) | 2009 | $539,279 | $227,084 | 2025-06 |
| Leadership Eastside A Washington Nonprofit Corporation | 501(c)(3) | 2004 | $515,629 | $133,615 | 2025-12 |
| Sea-King District of the Washington Interscholastic Activities Association | 501(c)(3) | 1982 | $462,852 | $76,560 | 2025-07 |
| Beta Alpha Alumni of Delta Sigma Phi Fraternity Inc | 501(c)(7) | 2004 | $379,792 | $1.5 million | 2024-12 |
| Somerset Parent Teacher Association of Bellevue Washington | 501(c)(3) | 1994 | $363,502 | $272,820 | 2025-06 |
| Highschoolgg | 501(c)(3) | 2019 | $350,776 | $207,707 | 2024-06 |
| Impact Players | 501(c)(3) | 2006 | $333,139 | $100,611 | 2024-12 |
| Bellevue Wolverine Boosters | 501(c)(3) | 2011 | $320,876 | $321,104 | 2025-06 |
| Nowmattersnow Org | 501(c)(3) | 2017 | $316,324 | $230,086 | 2024-12 |
| Bellevue Ski Council | 501(c)(3) | 2016 | $313,900 | $85,944 | 2025-05 |
| Nurse Practitioner Healthcare Foundation | 501(c)(3) | 2005 | $287,236 | $819,107 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $286,533 | $318,786 | 2025-06 |
| China Tomorrow Education Foundation | 501(c)(3) | 2001 | $276,479 | $469,041 | 2025-12 |
| Uttoron | 501(c)(3) | 2003 | $268,226 | $236,499 | 2025-12 |
| Cherry Crest Parent Teacher Association | 501(c)(3) | 2015 | $251,720 | $306,447 | 2025-06 |
| Newport High School Ptsa | 501(c)(3) | 1997 | $239,334 | $275,953 | 2025-06 |
| Friends of Appleby College United States Inc | 501(c)(3) | 2011 | $216,766 | $47,943 | 2025-12 |
| Knight Athletic Booster Association | 501(c)(3) | 2006 | $212,133 | $393,887 | 2025-06 |
| Bellevue Mandarin Dual Language Ptsa 2 3 170 | 501(c)(3) | 2014 | $211,462 | $85,945 | 2025-06 |
| Bellevue Club Swim Team Boosters | 501(c)(3) | 1984 | $209,241 | $231,661 | 2024-08 |
| Sunset Elementary Pta Bellevue Council 2 3 95 | 501(c)(3) | 1995 | $196,896 | $329,538 | 2025-06 |
| Legacy Homeschool Center | 501(c)(3) | 1999 | $184,945 | $194,670 | 2025-12 |
| Emerald Ballet Theatre | 501(c)(3) | 2008 | $184,936 | $184,671 | 2024-12 |
| Ukrainian Cultural Center Toloka | 501(c)(3) | 2024 | $166,219 | $15,248 | 2025-06 |
| Tyee Middle School Ptsa 2 3 145 | 501(c)(3) | 1996 | $149,158 | $200,890 | 2025-06 |
| Bellevue Childrens Academy Parent Association | 501(c)(3) | 2004 | $137,678 | $200,246 | 2024-06 |
| Sammamish High School Parent Teacher Association | 501(c)(3) | 1996 | $124,338 | $94,718 | 2025-06 |
| Lokahi Cares | 501(c)(3) | 2024 | $120,000 | $120,000 | 2025-12 |
| Spiritridge Elem Ptsa Bellevue Council Number 653-85 | 501(c)(3) | 1995 | $104,619 | $82,940 | 2025-06 |
| Partnership for Academic Competition Excellence | 501(c)(3) | 2014 | $90,352 | $140,711 | 2025-06 |
| Bulgarian Cultural Club in Seattle Wa | 501(c)(3) | 2014 | $86,703 | $16,206 | 2025-08 |
| Big Brains Education Enrichment | 501(c)(3) | 2014 | $84,506 | $500,000 | 2024-12 |
| Sedso Scholarship Fund | 501(c)(3) | 1987 | $74,190 | $1.1 million | 2025-08 |
| Bellevue Friends of the Library | 501(c)(3) | 1993 | $61,677 | $181,027 | 2025-12 |
| Seattle-King County Association of Realtors First Citizen Scholarship | 501(c)(3) | 2000 | $57,649 | $111,663 | 2025-12 |
| Phantom Lake Pta | 501(c)(3) | 1995 | $57,007 | $96,162 | 2025-06 |
| Latvian Medical and Dental Association | 501(c)(3) | 2014 | $41,032 | $35,463 | 2025-12 |
| Bellevue Instrumental Boosters | 501(c)(3) | 2014 | $38,739 | $29,826 | 2024-12 |
| Newport Band Parents Association | 501(c)(3) | 2018 | $36,390 | $228,372 | 2025-06 |
| Amplify Tyee | 501(c)(3) | 2025 | $10,953 | $7,457 | 2025-06 |
| Chestnut Hill Academy Parents and Teachers Ensuring Results | 501(c)(3) | 2002 | $5,814 | $146,177 | 2026-06 |
| Abigail Ruth Sung Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Action for Development and Empowerment of African Communitite | 501(c)(3) | 2024 | | | |
| Ai Bridge Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Ardmore Elementary Ptsa | 501(c)(3) | 1997 | $0 | $0 | 2025-06 |
| Auto News Foundation | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Bellevue Big Picture Ptsa | 501(c)(3) | 2013 | $0 | $0 | 2026-06 |
| Bellevue Digital Discovery Ptsa 2 3 100 | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Bellevue Minds Academy A Washington Non-Profit Corporation | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Bellevue Youth Debate | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Beminds Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Blakemore Foundation | 501(c)(3) | 1996 | | $9 million | 2024-12 |
| Break the Barrier | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Candy Can | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cedar Crest Academy Bellewood Parent Association | 501(c)(3) | 2017 | $0 | $0 | 2025-08 |
| Cedar Crest Academy Park Highland Parent Association | 501(c)(3) | 2023 | $0 | $0 | 2025-08 |
| Changming & Rong Family Foundation | 501(c)(3) | 2021 | | $34,205 | 2025-12 |
| Chinese Women in Computing | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Citizens Committee for Bellevue Quality School 53 | 501(c)(4) | 2023 | $0 | $0 | 2025-12 |
| Class | 501(c)(3) | 2024 | | | |
| Climate Change Education Project | 501(c)(3) | 2014 | | $20,164 | 2024-12 |
| Coding for All | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Compassion8innovation | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Cougar Mountain Montessori A Nonprofit Cooperation | 501(c)(3) | 2014 | $0 | $0 | 2025-08 |
| Cybersecurity Education Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Dartmouth Club of Western Washington | 501(c)(3) | 1997 | $0 | $0 | 2026-06 |
| Dash Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dig Quest | 501(c)(3) | 2024 | | | |
| Djiboutian American Community of Seattle | 501(c)(3) | 2025 | | | |
| Education Foundation of the Electric League | 501(c)(3) | 2001 | | | |
| Edureach | 501(c)(3) | 2025 | | | |
| Emerald Academy | 501(c)(3) | 2024 | | $5,457 | 2024-12 |
| Endow | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Envisiontech | 501(c)(3) | 2024 | | | |
| Evergreen Tax Club | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Evergrow Foundation | 501(c)(3) | 2026 | | | |
| Extracurriculars Org | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| FRC Team 949 | 501(c)(3) | 2018 | $0 | $0 | 2024-03 |
| Financialeducation365 | 501(c)(3) | 2025 | | | |
| French Bilingual Association | 501(c)(3) | 2003 | $0 | $0 | 2026-06 |
| Friends of Odle Music | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| Giving Ai | 501(c)(3) | 2026 | | | |
| Graham Murray Foundation for Education | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Help To Rise | 501(c)(3) | 2016 | $0 | $0 | 2023-09 |
| Highland Middle School Ptsa | 501(c)(3) | 1995 | $0 | $0 | 2025-06 |
| Iranian Cultural Heritage Center | 501(c)(3) | 2025 | | | |
| JHK Tutor | 501(c)(3) | 2025 | | | |
| Jiaotong & Chiaotung University Alumni Association of Seattle | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Komputer Enthusiasts of Greater Seattle | 501(c)(3) | 1997 | $0 | $0 | 2025-12 |
| Korean American Bar Association of Washington Foundation | 501(c)(3) | 2025 | | | |
| LD Debate Prep | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Lake Hills Ptsa | 501(c)(3) | 2006 | $0 | $0 | 2025-06 |
| Lu Family Foundation | 501(c)(3) | 2022 | | $385,883 | 2025-12 |
| Manasamskriti | 501(c)(3) | 2025 | | | |
| Mechaspark | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Media Educators Excellence Team | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Medina Academy Pto | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Mentorx | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Mission Inspired | 501(c)(3) | 2025 | $0 | $0 | 2023-06 |
| Mona Bailey Academy | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Mu Foundation | 501(c)(3) | 2025 | $0 | $0 | 2026-04 |
| Musical Friends | 501(c)(3) | 2025 | | | |
| N2thrive | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| NK Alumni Golf Scholarship Fund | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| National Association of Women Mbas - Seattle Professional Chapter | 501(c)(3) | 2012 | $0 | $0 | 2025-04 |
| Nest Foundation | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Nextgen Leadership Horizons | 501(c)(3) | 2025 | | | |
| North Bellevue Community Center Advisory Board | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Openlabs | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Oriana Ladys League | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| PSP Childrens Foundation | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Pacific Northwest Impact | 501(c)(3) | 2024 | | | |
| Parentsempowered | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Paritas Foundation Inc | 501(c)(3) | 2025 | | | |
| Peking University Alumni Association of Washington State | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Puget Sound Sharepoint Users Group | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Put A Dent | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Ramen Robotics Booster Club | 501(c)(3) | 2022 | $0 | $0 | 2026-06 |
| Restartup Academy | 501(c)(3) | 2024 | | | |
| Robo4all | 501(c)(3) | 2026 | | | |
| Robotics for All | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| STR Educational Development Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Scholars Online | 501(c)(3) | 2007 | $0 | $0 | 2026-03 |
| Seattle Area Coding Organization | 501(c)(3) | 2026 | | | |
| Seattle Infinity Math Circle | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Seattle Japanese School Pta | 501(c)(3) | 2006 | $0 | $0 | 2026-03 |
| Seattle Renda Alumni Club | 501(c)(3) | 2025 | | | |
| Second Life Chapter | 501(c)(3) | 2026 | | | |
| Seoul National University Alumni Association in USA | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Shandong University Alumni Association of Greater Seattle Are | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Shanghai Jiao Tong University Alumni Network of Greater Seattle | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sherwood Forest Elementary School Parent Teacher Student Association | 501(c)(3) | 1998 | $0 | $0 | 2024-06 |
| Sigma Sat | 501(c)(3) | 2024 | $0 | $0 | 2024-06 |
| Skillspire Foundation | 501(c)(3) | 2023 | $0 | $0 | 2024-04 |
| Stem Academy | 501(c)(3) | 2024 | | | |
| Stem Bridge | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Stem Bridge Foundation | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Stem4all | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Stempro Academy | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Stevenson Elementary School Pta | 501(c)(3) | 1986 | $0 | $0 | 2024-06 |
| Supporters of Newport Orchestra | 501(c)(3) | 2018 | $0 | $0 | 2025-06 |
| Teamscode | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Techbridgeai | 501(c)(3) | 2025 | | | |
| Terra Org | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| The Chicxulub Moment | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| The Parents Union | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Tillicum Staff Association | 501(c)(7) | 2020 | $0 | $0 | 2025-06 |
| Ultimate Vision | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Ustc Alumni Association in Greater Seattle | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Uw Alpha Delta Phi Parents Club | 501(c)(7) | 2021 | $0 | $0 | 2026-07 |
| Vietnam America Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Vtutr | 501(c)(3) | 2026 | | | |
| Wa Korean Women Realtors Association | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Wadila Foundation | 501(c)(3) | 2026 | | | |
| Walking To Your Dream | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Washington Asian Healthcare Professional Association | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Washington Association of Physicians of Indian Origin | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Washington High School Writing Comp Etition | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Washington State Beijing Tongxianghui Association | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| West China University of Medical Sciences Alumni Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Western Washington Cross Connection Prevention Professionals Group | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Yao Jing & Qifei Lu Foundation | 501(c)(3) | 2024 | | $123,635 | 2025-12 |
| Youth Inspire Youth | 501(c)(3) | 2026 | | | |
| Youth Led Change | 501(c)(3) | 2025 | | | |